A family member back from a Japan adventure was kind enough to oblige my request for photos of street scenes during her travels. Although you can easily get your Japanese narrow streets fix at Nathan Lewis' site, or even on Google Streetview, which now covers most of Japan, I thought I might share of few of them:
Asakusa District, Tokyo
Although many streets are effectively pedestrianized like this one, with little auto traffic, few if any are actually physically closed off to cars. On-street parking is almost nonexistent. Almost all bikes seem to be of the cruiser type at left, with high handlebars, comfy seats and a basket almost invariably attached in the front (and often the back as well). Helmets? Very few if any are worn, apparently.
Arcade-style public shopping streets, running for block after block, are abundant. In Kyoto, it appears a person could walk across much of the downtown area without leaving the shelter of one of these covered streets. Despite the near-total lack of nearby parking, the visual evidence shows that these streets aren't suffering from a dire lack of customers. I expected to find a website devoted to them, but that seems to be a project still in search of a creator.